Advanced In Car Technologies
Try and take your card out and do a full re-format. If that doesn't work get another cheap card from somewhere to test.
If the new SD works then it's a problem with your original card.
Tim - Project & Marketing Manager of Advanced In-Car Technologies LTD. An Audi Approved OEM / Retrofit Specialist Company. All views expressed are my own and bear no reflection on Advanced In Car Tech.
Audi Bluetooth -AMI/iPod - RNSE Navigation Units - Cruise Control - Optical Parking Systems - DAB (Digital Radio)- Audi Factory Retrofits- Stolen Vehicle Tracking - In-Car Cameras- Genuine VCDS Cables